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Finding the Fourth Proportional to 231,068.40, 346,602.60 and 81,477.60

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Solution

The fourth proportional to 231,068.40, 346,602.60 and 81,477.60 is: 122,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,068.40 : 346,602.60 = 81,477.60 : x
  2. Step 2: Convert to fraction form
    231,068.40/346,602.60 = 81,477.60/x
  3. Step 3: Cross multiply
    231,068.40x = 346,602.60 × 81,477.60
  4. Step 4: Simplify right side
    231,068.40x = 28,240,348,001.76
  5. Step 5: Solve for x
    x = 28,240,348,001.76/231,068.40
  6. Step 6: Final answer
    x = 122,216.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.